CVE-2017-2317
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedA denial of service vulnerability in Juniper Networks NorthStar Controller Application prior to version 2.1.0 Service Pack 1 may allow an unauthenticated, unprivileged, network-based attacker to cause denials of services to underlying database tables leading to potential information disclosure, modification of system states, and partial to full denial of services relying upon data modified by an attacker.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceA denial of service vulnerability in Juniper Networks NorthStar Controller Application allows unauthenticated, network-based attackers to corrupt underlying database tables, potentially causing information disclosure, unauthorized data modification, and partial to full denial of services.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data<= 2.1.0CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- Low
- Availability
- High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify if Juniper NorthStar Controller is runningCheck for NorthStar Controller processes (such as 'ncserver', 'ncs', or 'northstar' processes) using commands like 'ps aux | grep -i northstar' or 'systemctl list-units | grep -i northstar'Affected if The NorthStar Controller application process is running on the system
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Locate the NorthStar Controller installationLook for typical Juniper installation directories such as /opt/juniper/northstar, /usr/local/northstar, or check /var/lib/juniper/northstar for application dataAffected if NorthStar Controller software is installed in any of these common locations
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Determine the installed versionCheck for version information in the installation directory - look for version files (VERSION, version.txt), RPM/Deb package metadata ('rpm -qi' or 'dpkg -l' for northstar packages), or check the application's about/help page if accessible via web UI on port 8080 or 8443Affected if The version displayed is 2.1.0 or earlier (any version <= 2.1.0)
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Verify network exposureConfirm if the NorthStar Controller web interface (typically ports 8080/8443) or API ports are exposed to untrusted networks. Check firewall rules ('iptables -L' or 'firewall-cmd --list-all') and listening services ('netstat -tulpn | grep -E "8080|8443"')Affected if The controller UI or API is accessible from untrusted networks without proper network segmentation
The environment is affected if Juniper NorthStar Controller version 2.1.0 or earlier is installed and the management interface is network-accessible to untrusted attackers.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataUpgrade Juniper NorthStar Controller Application to version 2.1.0 Service Pack 1 or later to remediate this vulnerability.
- Consultation6.0 h
- Implementation4.0 h
- Testing8.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $6,144.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2017-2317 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2017-2317 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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